From owner-freebsd-current Tue Mar 6 19: 4:45 2001 Delivered-To: freebsd-current@freebsd.org Received: from meow.osd.bsdi.com (meow.osd.bsdi.com [204.216.28.88]) by hub.freebsd.org (Postfix) with ESMTP id 9DA3937B718 for ; Tue, 6 Mar 2001 19:04:43 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by meow.osd.bsdi.com (8.11.2/8.11.2) with ESMTP id f2734aA61188 for ; Tue, 6 Mar 2001 19:04:36 -0800 (PST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200103070259.f272xt371041@freefall.freebsd.org> Date: Tue, 06 Mar 2001 19:04:23 -0800 (PST) From: John Baldwin To: current@FreeBSD.org Subject: HEADSUP: Kernel b0rked for a little while.. Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 07-Mar-01 John Baldwin wrote: > jhb 2001/03/06 18:59:54 PST > > Modified files: > sys/kern kern_sig.c > Log: > - Proc locking. Most of signal handling is now MP safe and doesn't require > Giant. The only exception is the CANSIGNAL() macro. Unlocking the proc > lock around sendsig() in trapsignal() is also questionable. Note that > the functions sigexit(), psignal(), and issignal() must be called with > the proc lock of the process in question held. postsig() and > trapsignal() should not be called with the proc lock held, but they > also do not require Giant anymore either. > - Remove spl's that are now no longer needed as they are fully replaced. > > Revision Changes Path > 1.110 +163 -71 src/sys/kern/kern_sig.c Until I finish committing all the changes to lock the process when calling psignal() and sigexit(), a kernel with INVARIANTS will panic. I'll send another message when I'm done. -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message